CN221388024U - Air curtain dust hood - Google Patents
Air curtain dust hood Download PDFInfo
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- CN221388024U CN221388024U CN202323022867.0U CN202323022867U CN221388024U CN 221388024 U CN221388024 U CN 221388024U CN 202323022867 U CN202323022867 U CN 202323022867U CN 221388024 U CN221388024 U CN 221388024U
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- truncated cone
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- 239000000428 dust Substances 0.000 title claims abstract description 86
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 4
- 238000003915 air pollution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
An air curtain dust hood relates to the technical field of dust removal, and comprises a hood body, wherein the hood body comprises a cylindrical section, and the lower end of the cylindrical shell of the cylindrical section is fixed on and communicated with a round table-shaped shell Fang Xiaoduan of the round table-shaped shell section to form a hollow shell; the dust discharging channel passes through the cover body from bottom to top along the central axis of the cover body and is in through connection with the conical cover upper Fang Xiaoduan, and the inner wall of the circular tube and the inner wall of the conical cover are coplanar with the outer wall of the cover body shell; the plurality of air outlets are arranged on the surface of the cover body between the opening edge of the lower end of the conical cover and the edge of the large end below the circular truncated cone-shaped cover body along the circumferential array of the central axis of the cover body; the side surface of the upper end of the cylindrical shell of the cover body is fixedly connected with a cyclone air inlet barrel; the upper end of the circular tube penetrates out of the upper end of the cylindrical shell and is connected with an air exhaust dust removal device through a plastic pipeline; the utility model has the beneficial effects that the opening area of the dust hood is greatly reduced, so that the dust removal system is optimized.
Description
Technical Field
The utility model belongs to the technical field of dust removal, and particularly relates to an air curtain dust hood.
Background
Four key aspects of a properly designed air pollution control system are dust capture (hood), dust transfer (duct), selection of the appropriate dust removal equipment (scrubber), and selection of the appropriate air moving device (fan). A dust hood is where the air pollution control system first handles the process of generating emissions. The designed perfect dust hood can reduce the number of air pipes, the occupied area of smaller dust removing equipment and a lower-horsepower fan. Thereby reducing maintenance and energy consumption, and reducing the overall system installation cost and the system operation cost.
The suction hood design aims to balance multiple characteristics to achieve optimal system performance. These features include: the method has the advantages of controlling the emission to the greatest extent, reducing the air flow requirement as much as possible, minimizing the pressure loss (energy), and reducing the influence on the flow efficiency and the productivity of staff to the greatest extent.
The dust hood used at present is mostly a single-layer hood, and covers dust source points as much as possible, so that the dust removal effect is achieved, and meanwhile, the production and the staff operation cannot be influenced. Therefore, the manufactured dust hood is relatively large, and in order to ensure the wind speed of the hood opening, the corresponding pipeline diameter, the specification of the dust remover and the used fan are large, so that the resource waste is caused, and the cost is high; meanwhile, the requirements on the installation sites around the dust source are correspondingly higher, and the dust removal difficulty under the condition of limited sites is higher.
Therefore, a need exists for a reasonably structured, effective suction hood that addresses the above-described issues.
Disclosure of utility model
The present utility model is directed to an air curtain dust hood, which solves the above-mentioned problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The air curtain dust hood comprises a hood body, wherein the hood body comprises a cylindrical section and a truncated cone-shaped shell section, and the lower end of the cylindrical section is fixed on and communicated with a truncated cone-shaped shell Fang Xiaoduan of the truncated cone-shaped shell section to form a hollow shell; the dust exhaust channel passes through the cylindrical shell from bottom to top along the central axis of the shell, the dust exhaust channel is a circular pipeline with a circular cross section, the edge of the opening at the lower end of the circular pipeline is fixedly connected with the edge of the opening at Fang Xiaoduan on a conical shell, the conical shell is a conical pipeline with openings at the upper end and the lower end and the opening at the lower end of the conical pipeline is an outwards-expanded opening, the large-end opening below the conical shell is positioned on the large-end face below the truncated cone-shaped shell of the shell, and the inner walls of the dust exhaust channel and the conical shell are coplanar with the shell wall of the shell; the plurality of air outlets are circumferentially arrayed on the surface of the cover body between the opening edge of the lower end of the conical cover and the edge of the big end below the circular truncated cone-shaped shell along the central axis of the cover body, and a fixed inclination angle is formed between the surface of the cover body between the opening edge of the lower end of the conical cover and the edge of the big end below the circular truncated cone-shaped shell and the lower end of the circular truncated cone-shaped shell; the side surface of the upper end of the cylindrical shell of the cover body is provided with a cyclone air inlet cylinder, a pipeline of the cyclone air inlet cylinder is wound on the outer side of the upper end of the cylindrical shell of the cover body, the inner side of the pipeline is connected with the side surface of the upper end of the cylindrical shell of the cover body in a through way, one end, far away from the upper end of the cylindrical shell of the cover body, of the pipeline of the cyclone air inlet cylinder is provided with an air inlet, and an air inlet motor is arranged in the air inlet; the upper end of the round pipe of the dust exhaust pipeline penetrates out of the upper end of the cylindrical shell of the cover body and is connected with one end of the plastic pipeline, and the other end of the plastic pipeline is connected with the air exhaust dust removal device.
The lower end of the circular pipeline of the dust discharging channel penetrates out of the lower end of the cylindrical shell and is positioned below the lower end of the cylindrical shell, and the side taper of the conical cover is larger than that of the circular truncated cone-shaped shell of the cover body.
The cyclone air inlet cylinder is a pipeline with a square section, the pipeline is bent inwards in a horizontal plane and is wound on the side surface of the upper end of the cylindrical shell of the cover body, and the inner side of the bent pipeline is connected with the side surface of the upper end of the cylindrical shell of the cover body in a penetrating way.
The width of the surface of the cover body between the opening edge of the lower end of the conical cover and the edge of the big end below the circular truncated cone-shaped cover body is 3-5 cm, and a fixed inclination angle between 110 degrees and 130 degrees is formed between the surface of the cover body between the opening edge of the lower end of the conical cover and the edge of the big end below the circular truncated cone-shaped cover body and the horizontal end surface of the big end below the circular truncated cone-shaped cover body.
The exhaust dust removing device is internally provided with an exhaust fan, and an air inlet of the exhaust fan is in through connection with one end of the plastic pipeline, which is far away from the dust removing channel.
The dust exhaust channel is characterized in that a plurality of air outlet holes are arranged on the surface of the shell of the cover body between the opening edge of the lower end of the conical cover of the dust exhaust channel and the edge of the large end below the circular table-shaped shell of the cover body along the circumferential array of the central axis of the cover body, and the distance between every two air outlet holes is not more than 2 cm.
Compared with the prior art, the utility model has the beneficial effects that:
(1) The utility model relates to an air curtain dust hood, which is characterized in that an air outlet hole on the surface of a hood body between the edge of an opening at the lower end of a conical hood of a dust exhaust channel of the air curtain dust hood and the edge of a large end below a circular table-shaped housing of the hood body is conical to form an air curtain, and the polluted air flow is sealed in the air curtain dust hood. The opening area of the dust hood is greatly reduced, so that the whole dust removal system is optimized, and the dust removal system has important significance under the condition of limited installation space.
(2) The air curtain dust hood is suitable for top suction, side suction, bottom suction, slot side suction and the like.
(3) According to the air curtain dust hood, the air inlet pipeline of the cyclone air inlet cylinder at the outer side of the upper end of the cylindrical shell of the hood body is spirally wound along the outer side of the upper end of the cylindrical shell of the hood body on a horizontal plane, and the inner opening of the air inlet pipe is connected with and communicated with the outer opening of the cylindrical shell of the hood body, so that the air flow of the air jet opening is distributed uniformly, and better dust-containing gas is less escaped.
(4) The air curtain dust hood provided by the utility model adopts the air curtain to inhibit the diffusion of pollutants, has small air quantity and strong anti-interference capability, does not influence the process operation, and has good effect.
Drawings
FIG. 1 is a front elevational view of the structure of the suction hood of the present utility model;
FIG. 2 is a top plan view of the structure of the suction hood of the present utility model;
In the figure: 1 a dust discharging channel; 2, a conical cover; 3, a cover body; 301 a cylindrical housing; 302 a cone-shaped shell; 303 air outlet holes; 3011 cyclone air inlet tube.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to the drawings, in the embodiment of the utility model, an air curtain dust hood comprises a hood body 3, wherein the hood body 3 comprises a cylindrical section and a truncated cone-shaped shell 302 section, and the lower end of the cylindrical section itself cylindrical shell 301 is fixed on and connected with the truncated cone-shaped shell 302 of the truncated cone-shaped shell 302 section itself through Fang Xiaoduan to form a hollow shell; the dust exhaust channel 1 passes through the cylindrical shell 301 from bottom to top along the central axis of the cover body 3, the dust exhaust channel 1 is a circular pipeline with a circular cross section, the edge of the opening at the lower end of the circular pipeline is fixedly connected with the edge of the opening at the small end above the conical cover 2, the conical cover 2 is a conical pipeline with openings at the upper end and the lower end, the opening at the lower end of the conical pipeline is an outwards-expanded opening, the opening at the large end below the conical cover 2 is positioned on the end face at the large end below the round table-shaped shell 302 of the cover body 3, and the inner walls of the dust exhaust channel 1 and the conical cover 2 are coplanar with the shell wall of the cover body 3; the plurality of air outlets 303 are circumferentially arrayed on the surface of the cover body 3 between the opening edge of the lower end of the conical cover 2 and the large end edge below the circular truncated cone-shaped shell 302 along the central axis of the cover body 3, and a fixed inclination angle is formed between the surface of the cover body 3 between the opening edge of the lower end of the conical cover 2 and the large end edge below the circular truncated cone-shaped shell 302 and the lower end of the circular truncated cone-shaped shell 302; the side surface of the upper end of the cylindrical shell 301 of the cover body 3 is provided with a cyclone air inlet barrel, a pipeline of the cyclone air inlet barrel 3011 is wound on the outer side of the upper end of the cylindrical shell 301 of the cover body 3, the inner side of the pipeline is connected with the connecting part of the side surface of the upper end of the cylindrical shell 301 of the cover body 3 in a penetrating way, one end, far away from the outer side of the upper end of the cylindrical shell 301 of the cover body 3, of the pipeline of the cyclone air inlet barrel is provided with an air inlet, and an air inlet motor is arranged in the air inlet; the upper end of the round pipe of the dust exhaust pipeline passes through the upper end of the cylindrical shell 301 of the cover body 3 and is connected with one end of the plastic pipeline, and the other end of the plastic pipeline is connected with the air exhaust dust removal device; the utility model relates to an air curtain dust hood, which is characterized in that an air outlet 303 on the surface of a hood body 3 between the opening edge of the lower end of a conical hood 2 of a dust exhaust channel 1 of the air curtain dust hood and the large end edge below a circular table-shaped housing 302 of the hood body 3 blows air flow to be conical, so as to form an air curtain, and seal polluted air flow therein. The opening area of the dust hood is greatly reduced, so that the whole dust removal system is optimized, and the dust removal system has important significance under the condition of limited installation space.
The lower end of the circular pipeline of the dust discharging channel 1 penetrates out of the lower end of the cylindrical shell 301 and is positioned below the lower end of the cylindrical shell 301, and the side taper of the conical cover 2 is larger than that of the circular truncated cone-shaped shell 302 of the cover 3; the cyclone air inlet cylinder 3011 is a pipe with a square cross section, the pipe is bent inwards in a horizontal plane and is wound on the side surface of the upper end of the cylindrical shell 301 of the cover body 3, and the inner side of the bent pipe is connected with the side surface of the upper end of the cylindrical shell 301 of the cover body 3 in a penetrating way; this section is intended to further describe and define the shape and configuration of the dust exhaust passage 1, the cone cover 2, the cyclone air intake barrel 3011.
The width of the shell surface of the shell body 3 between the opening edge of the lower end of the conical shell 2 and the edge of the large end below the round table-shaped shell 302 of the shell body 3 is three to five centimeters, and a fixed inclination angle between one hundred and ten degrees and one hundred and thirty degrees is formed between the shell surface of the shell body 3 between the opening edge of the lower end of the conical shell 2 and the edge of the large end below the round table-shaped shell 302 of the shell body 3 and the horizontal end surface of the large end below the round table-shaped shell 302; this section further describes by number the width of the shell 3 between the open edge of the lower end of the conical shell 2 and the large edge of the lower end of the conical shell 302 of the shell 3 itself and the angle between the shell surface of this section of shell 3 and the lower end of the conical shell 302.
Wherein, a plurality of air outlet holes 303 arranged on the shell surface of the cover body 3 between the opening edge of the lower end of the conical cover 2 of the dust exhaust channel 1 and the big end edge below the round table-shaped shell 302 of the cover body 3 along the circumferential array of the central axis of the cover body 3 are round, and the distance between every two air outlet holes 303 is not more than 2 cm; the air flow ejected from the air outlet 303 is tapered to cover the dust source and form an air seal. This section is intended to specifically describe the location and function of the outlet aperture 303.
Wherein, the exhaust dust removing device is internally provided with an exhaust fan, and an air inlet of the exhaust fan is in through connection with one end of the plastic pipeline far away from the dust removing channel 1; the section aims at limiting the connection relation between the dust hood and the exhaust dust collector and revealing the functional coordination between the dust hood and the exhaust dust collector.
The working principle of the utility model is as follows: the air enters the cylindrical shell 301 of the cover body 3 through the air inlet of the cyclone air inlet cylinder 3011, the air flow is changed from linear motion to circular motion, the rotating air flow spirally downward along the inner wall of the cylindrical shell 301 and flows towards the circular truncated cone-shaped shell 302, the air flow is sprayed out from the plurality of air outlet holes 303 arranged along the circumferential array at the lower end of the circular truncated cone-shaped shell 302, and the sprayed air flow is conical and covers a dust source to form an air seal. Simultaneously, the exhaust division device starts to work, negative pressure is formed in the conical cover 2 of the dust exhaust channel 1, and dust-containing gas in the air seal range is sucked into the exhaust division device for purification.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The utility model provides an air curtain dust hood, includes the cover body, its characterized in that: the cover body comprises a cylindrical section and a truncated cone-shaped shell section, and the lower end of the cylindrical section is fixed with the truncated cone-shaped shell Fang Xiaoduan of the truncated cone-shaped shell section and is connected with the truncated cone-shaped shell to form a hollow shell; the dust exhaust channel passes through the cylindrical shell from bottom to top along the central axis of the shell, the dust exhaust channel is a circular pipeline with a circular cross section, the edge of the opening at the lower end of the circular pipeline is fixedly connected with the edge of the opening at Fang Xiaoduan on a conical shell, the conical shell is a conical pipeline with openings at the upper end and the lower end and the opening at the lower end of the conical pipeline is an outwards-expanded opening, the large-end opening below the conical shell is positioned on the large-end face below the truncated cone-shaped shell of the shell, and the inner walls of the dust exhaust channel and the conical shell are coplanar with the shell wall of the shell; the cover body self shell surface between the opening edge of the lower end of the conical cover and the big end edge below the circular truncated cone-shaped shell and the horizontal end surface of the lower end of the circular truncated cone-shaped shell form a fixed inclination angle, and the plurality of air outlets take the central axis of the cover body as an array axis and are circumferentially arrayed on the cover body self shell surface between the opening edge of the lower end of the conical cover and the big end edge below the circular truncated cone-shaped shell; the side surface of the upper end of the cylindrical shell of the cover body is provided with a cyclone air inlet cylinder, a pipeline of the cyclone air inlet cylinder is wound on the outer side of the upper end of the cylindrical shell of the cover body, the inner side of the pipeline is connected with the side surface of the upper end of the cylindrical shell of the cover body in a through way, one end, far away from the upper end of the cylindrical shell of the cover body, of the pipeline of the cyclone air inlet cylinder is provided with an air inlet, and an air inlet motor is arranged in the air inlet; the upper end of the round pipe of the dust exhaust pipeline penetrates out of the upper end of the cylindrical shell of the cover body and is connected with one end of the plastic pipeline, and the other end of the plastic pipeline is connected with the air exhaust dust removal device.
2. An air curtain dust hood according to claim 1, wherein: the lower end of the circular pipeline of the dust discharging channel penetrates out of the lower end of the cylindrical shell and is positioned below the lower end of the cylindrical shell, and the side taper of the conical cover is larger than that of the circular truncated cone-shaped shell of the cover body.
3. An air curtain dust hood according to claim 1, wherein: the cyclone air inlet cylinder is a pipeline with square cross section, the pipeline is bent inwards in a horizontal plane and is wound on the side surface of the upper end of the cylindrical shell of the cover body, and the inner side of the bent pipeline is connected with the side surface of the upper end of the cylindrical shell of the cover body in a penetrating way.
4. An air curtain dust hood according to claim 1, wherein: the width of the surface of the cover body between the opening edge of the lower end of the conical cover and the edge of the big end below the circular truncated cone-shaped cover body is 3-5 cm, and a fixed inclination angle between 110 degrees and 130 degrees is formed between the surface of the cover body between the opening edge of the lower end of the conical cover and the edge of the big end below the circular truncated cone-shaped cover body and the horizontal end surface of the big end below the circular truncated cone-shaped cover body.
5. An air curtain dust hood according to claim 1, wherein: the exhaust dust removing device is internally provided with an exhaust fan, and an air inlet of the exhaust fan is in through connection with one end of the plastic pipeline far away from the dust removing channel.
6. An air curtain dust hood according to claim 1, wherein: the multiple air outlet holes arranged on the surface of the shell body between the opening edge of the lower end of the conical cover and the large end edge below the circular truncated cone-shaped shell body along the circumferential array of the central axis of the shell body are circular, and the distance between every two air outlet holes is not more than 2 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323022867.0U CN221388024U (en) | 2023-11-09 | 2023-11-09 | Air curtain dust hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323022867.0U CN221388024U (en) | 2023-11-09 | 2023-11-09 | Air curtain dust hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221388024U true CN221388024U (en) | 2024-07-23 |
Family
ID=91937711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323022867.0U Active CN221388024U (en) | 2023-11-09 | 2023-11-09 | Air curtain dust hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221388024U (en) |
-
2023
- 2023-11-09 CN CN202323022867.0U patent/CN221388024U/en active Active
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